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The mean of 7 numbers is 63. What is the sum of the numbers?

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Finding the sum of 7 numbers with the mean of 63, simply multiply 7 times 63 to get 441. To prove it I will use the of sum of 7 consecutive numbers, letting the first number be n, 2nd number n+1, 3rd number n+2, 4th number n+3, 5th number n+4, 6th number n+5 and 7th number n+6. read more

The mean of 7 numbers is 60. So the sum of the 7 numbers is 420. The first 6 numbers sum up to 50, so the seventh number is 370. read more

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